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发明名称
METHOD FOR MANUFACTURING NON-MAGNETIC DRILLING RODS
摘要
申请公布号
EP0207068(B1)
申请公布日期
1991.09.25
申请号
EP19860890180
申请日期
1986.06.19
申请人
SCHOELLER-BLECKMANN GES. M.B.H.
发明人
KOHL, HEINZ, DR.;POHL, HELMUT, DIPL.-ING.;PUECHL, ALOIS
分类号
E21B17/00;C21D8/00;C22C38/00;C22C38/38;C22C38/58
主分类号
E21B17/00
代理机构
代理人
主权项
地址
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